[R] Multiple corrgrams or joining jpg/png

Hello world, I have a database with time series of concentration of nutrients for several lakes. I wanted *one* corrgram for each nutrient in all lakes (correlation of a single nutrient content of all lakes in different years). The single corrgram works pretty well, but I cannot create a page

[R] rbind/timestamp problem

Hello world, I am stuck somehow... I am trying to add a timestamp to a sensitivity matrix: #this code works: sensitivity=data.frame(mtype=1,cdate=2) sensitivity=rbind(sensitivity,c(mtype=2,cdate=2)) # this code does not work - no idea why sensitivity=data.frame(mtype=1,cdate=as.POSIXct(Sys.ti

Re: [R] rbind/timestamp problem

Thank you, now it works. I would never have never found the source of the problem. I am trying to build a data frame with results from a sensitivity analysis for a model. I use rbind because the number of rows is unkown and i use the timestamp as a hint for the students that they do not analyse